Estimate Subtitle Display Duration
Estimate how long a subtitle should remain visible from its word count and a target reading speed.
Practical Example
A 12-word subtitle at 180 words per minute needs about 4 seconds of reading time.
Factors That Affect the Result
Reading speed, language, punctuation, line length, viewer age and shot changes can influence comfortable subtitle timing.
Frequently Asked Questions
Is one reading speed right for everyone?
No.
Should very short subtitles have minimum time?
Often yes.
Does this create subtitle files?
No.
Related Tools
Methodology and Practical Limits
Subtitle display time can be estimated from text length and a target reading speed. Very short captions still need enough minimum exposure to be noticed, while shot changes and dialogue timing can require manual adjustment beyond the arithmetic estimate.